Means for support of aero engines



Filed my 51. 1925 lctw p Patented Apr.- 12,1921.

"EEEDEnIcx HENRY noYcE AND AIJBERT.

eEoaeE ELLIoir'r; or wEs'r wI'r'rEEINe,

NEAR CHICHESTER, ENGLAND, ASSIGNORS T ROLLS-ROYCE LIMITED, or DERBY,

ENGLAN D.

MEANS roasurronr or AERO ENGINES. i

Application filed July 31,1926, SeIial No. 126,284, and in Greatj ritain August 8, I925.

This invention. is. an improved means of 1 supporting aero engines on the face of the "nacelle of the -aeroplane or other .part of the frame provided for the purpose.

The invention is speciall useful in cases where the engine contains our rows of cylinders' in cruciform.

According to this invention the crank case is provided with oppositely placed trun-' nions which are held at the aplcesv of cantilever brackets-projected from the face of the nacelle or part of the frame aforesaid, for

I example, there may be four cantilever brackets one on eachside of, one above, and one below the. engine, or there may be two, one

on each side of the engine, and means to' locate the engine torsionally about such trunnions such as a tubular or like projection "from the back of the. engine secured to the nacelle or frame, or a'like cantilever bracket at the top or at the bottom of the engine.

. In the accompanying drawing an example,

v or both top and bottom of our invention is illustrated, in which there is a. cantilever bracket on each side of the engine and one on the to Fig. .1 1s a side. elevation, Fig. 2 a plan view with one block of cylinders omitted, and certain partsof the suspension in sec-. tion on line 22 of Fig. 1. Fig. 3 a rear end elevation, Fig. 4 an enlarged section on line 4-4 of Fig. 2, and Fig. 5 a section on .line 55 of Fig. 4 of one of the feet or brackets which secure the structure to the aeroplane framework.

- d and secured by the nuts 6 a is the crank case, a are the cylinder" castings and'a the' propeller shaft housing, 6 and are brackets or trunnions bolted to the crankshaft case, and. as to b at points on. an axis running practically through the centre of gravity of the engine, having tapered portions 6 and threaded ends provided with nuts 5 0 and c are steel tubes, (1 are forgini'g with socketsfial into which the ends'of tribes c and 0 .are inserted, and into which they are brazed and pegged and with a portion d with a tapered perforation therethrough correspon ing to the tapered portion I) of the brackets?) and 6b.. The tacred portions of the trunnions are .inserted in the tapered perforations of the forgings.

e are forgings with sockets e into which. the other ends.

tapered hole.-

bf tubes 0 are inserted and in which they are brazed and peggedfandwith a portion e which is perforated. V f are forgings with sockets f into which serted and in which they are brazed and pegged witha portion 1" perforated with a g are steel I tubes having p eces 9 brazed and pegged into their ends with a tapered portion g and threwded'ends 9}. These tubes pass through the perform tions in theforgmgs e in which they are brazed, and the tapered portions 9 of the end pieces 9 engage the holes in'the forgings f and are'secured therein by nuts g. h

the tubes. 0 are ,in-

are split clips encircling the tubes g between the forgings erand f-with holes it therethrough to receive bolts for securing-the apparatus to the aero 'lanestructure. 2' is a steel tube, each en thereof inserted in a socket of forging) into which it 'is' brazed and pegged.

What weclaim is V 1. In an aeroplane means for supporting the engine on the face 'of the nacelle 'comprlslng cantilever triangular brackets pro jected from the nacelle and trunnions projected from the sides of the engines and secured to 'the-apices of such brackets.

2'.'In.a'n aeroplane means for supporting the engine on the face of the nacelle'comprising two cantilever triangular brackets projected from the nacelle in vertical planes, oneon each side of the engine, trunnions projected from the engine secured to the apices of such brackets and'meansfor locat- 7 ing the engine about such trunnionaj 3. In an aeroplane means for sup ortmg the engine'on the face of the nacel e comprising two cantilever brackets projected from the nacelle in vertical planes one on each side of the engine, trunnions projected from the sides of the engine and secured to the apices of such brackets and a tubular the engine on the nacelle comprising two cantilever-brackets projected from the na- .celle in vertical planes one'on each side of the engine, trunnions projected from the sides of the engine secured to the apices of suchIbrackets, a cantilever bracket projected from the nacelle in a horizontal or approxiv member secured to the top .of the engine and mately horizontal plane on the top of the.

engine and a trunnion projected from the top of the engine and secured to the apex of such lever. T

5. In an aeroplane means for supporting the engine on the nacelle comprising two cantilever brackets projected from the nacelle in vertcal planes one on each side of the engine, trunnions projected from the sides of the engine and secured to the apices of suchbrackets, a cantilever bracket projected from the nacelle in a horizontal or approximatel engine, an a trunnion projectedfrom the under side of the engine and secured to the apex of the said bracket.

6. In an aeroplane means for supporting the engine on the nacelle comprising two horizontal plane. under the.

cantilever brackets projected from-the 'nacells in vertical planes one on each side of the engine, trunmons projected from the engine and secured to the apices of suchhrackets, a cantilever bracket projectedfrolnthe nacelle in a horizontal plane on the top of the engine a trunnion projected from the engine and, secured to the apex of such bracket, a cantilever bracket projected from the nacelle in ahorizontal or approximately horizontal plane underneaththe engine and a trunnion projected from-the engine and FREDERICK HENRY ROYCE. ALBERT GEORGEELLIOTT. 

